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authorAlex Deucher <alexdeucher@gmail.com>2010-10-18 23:54:56 -0400
committerDave Airlie <airlied@redhat.com>2010-10-26 14:47:54 +1000
commit881fe6c1d06bf49f4ab7aef212cdaf66bd059614 (patch)
tree53b482c43c60ba9301e312f27d05631f0780fd4c /drivers/gpu/drm/radeon/rv770.c
parent354da653233898ed1e51f20cebac9705456bf9b1 (diff)
drm/radeon/kms: properly compute group_size on 6xx/7xx
Needed for tiled surfaces. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rv770.c')
-rw-r--r--drivers/gpu/drm/radeon/rv770.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index ab83f688263..245374e2b77 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -644,10 +644,11 @@ static void rv770_gpu_init(struct radeon_device *rdev)
else
gb_tiling_config |= BANK_TILING((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT);
rdev->config.rv770.tiling_nbanks = 4 << ((gb_tiling_config >> 4) & 0x3);
-
- gb_tiling_config |= GROUP_SIZE(0);
- rdev->config.rv770.tiling_group_size = 256;
-
+ gb_tiling_config |= GROUP_SIZE((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT);
+ if ((mc_arb_ramcfg & BURSTLENGTH_MASK) >> BURSTLENGTH_SHIFT)
+ rdev->config.rv770.tiling_group_size = 512;
+ else
+ rdev->config.rv770.tiling_group_size = 256;
if (((mc_arb_ramcfg & NOOFROWS_MASK) >> NOOFROWS_SHIFT) > 3) {
gb_tiling_config |= ROW_TILING(3);
gb_tiling_config |= SAMPLE_SPLIT(3);